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<p><code>#include &lt;<a class="el" href="b2_broad_phase_8h_source.html">b2BroadPhase.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:ad14dca932793724b27024e60a6ade466"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom">{ <b>e_nullProxy</b> = -1
 }</td></tr>
<tr class="separator:ad14dca932793724b27024e60a6ade466"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ae2f7af756bc55ece45221466c5af449c"><td class="memItemLeft" align="right" valign="top">int32&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#ae2f7af756bc55ece45221466c5af449c">CreateProxy</a> (const <a class="el" href="structb2_a_a_b_b.html">b2AABB</a> &amp;aabb, void *userData)</td></tr>
<tr class="separator:ae2f7af756bc55ece45221466c5af449c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a84f0fb227dc01a9b9baa55c7b8c68984"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a84f0fb227dc01a9b9baa55c7b8c68984"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a84f0fb227dc01a9b9baa55c7b8c68984">DestroyProxy</a> (int32 proxyId)</td></tr>
<tr class="memdesc:a84f0fb227dc01a9b9baa55c7b8c68984"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroy a proxy. It is up to the client to remove any pairs. <br/></td></tr>
<tr class="separator:a84f0fb227dc01a9b9baa55c7b8c68984"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a01dc18a19c2b5d0cc1d9cd8c8554234c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a01dc18a19c2b5d0cc1d9cd8c8554234c">MoveProxy</a> (int32 proxyId, const <a class="el" href="structb2_a_a_b_b.html">b2AABB</a> &amp;aabb, const <a class="el" href="structb2_vec2.html">b2Vec2</a> &amp;displacement)</td></tr>
<tr class="separator:a01dc18a19c2b5d0cc1d9cd8c8554234c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a67b296431ebbc7b44037f21d645d9166"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a67b296431ebbc7b44037f21d645d9166"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a67b296431ebbc7b44037f21d645d9166">TouchProxy</a> (int32 proxyId)</td></tr>
<tr class="memdesc:a67b296431ebbc7b44037f21d645d9166"><td class="mdescLeft">&#160;</td><td class="mdescRight">Call to trigger a re-processing of it's pairs on the next call to UpdatePairs. <br/></td></tr>
<tr class="separator:a67b296431ebbc7b44037f21d645d9166"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7b00ac700db52e52248a25397007d4ff"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7b00ac700db52e52248a25397007d4ff"></a>
const <a class="el" href="structb2_a_a_b_b.html">b2AABB</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a7b00ac700db52e52248a25397007d4ff">GetFatAABB</a> (int32 proxyId) const </td></tr>
<tr class="memdesc:a7b00ac700db52e52248a25397007d4ff"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the fat AABB for a proxy. <br/></td></tr>
<tr class="separator:a7b00ac700db52e52248a25397007d4ff"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a89c099e95237d68577376d8f9a4ed013"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a89c099e95237d68577376d8f9a4ed013"></a>
void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a89c099e95237d68577376d8f9a4ed013">GetUserData</a> (int32 proxyId) const </td></tr>
<tr class="memdesc:a89c099e95237d68577376d8f9a4ed013"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get user data from a proxy. Returns NULL if the id is invalid. <br/></td></tr>
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<tr class="memitem:a1785eb29d14997d81bd537f064d22aba"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1785eb29d14997d81bd537f064d22aba"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a1785eb29d14997d81bd537f064d22aba">TestOverlap</a> (int32 proxyIdA, int32 proxyIdB) const </td></tr>
<tr class="memdesc:a1785eb29d14997d81bd537f064d22aba"><td class="mdescLeft">&#160;</td><td class="mdescRight">Test overlap of fat AABBs. <br/></td></tr>
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<tr class="memitem:a399fa4f5289a1ec46a65f726f3bac890"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a399fa4f5289a1ec46a65f726f3bac890"></a>
int32&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a399fa4f5289a1ec46a65f726f3bac890">GetProxyCount</a> () const </td></tr>
<tr class="memdesc:a399fa4f5289a1ec46a65f726f3bac890"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the number of proxies. <br/></td></tr>
<tr class="separator:a399fa4f5289a1ec46a65f726f3bac890"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0a1acd693466b997700242ae00784c20"><td class="memTemplParams" colspan="2"><a class="anchor" id="a0a1acd693466b997700242ae00784c20"></a>
template&lt;typename T &gt; </td></tr>
<tr class="memitem:a0a1acd693466b997700242ae00784c20"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a0a1acd693466b997700242ae00784c20">UpdatePairs</a> (T *callback)</td></tr>
<tr class="memdesc:a0a1acd693466b997700242ae00784c20"><td class="mdescLeft">&#160;</td><td class="mdescRight">Update the pairs. This results in pair callbacks. This can only add pairs. <br/></td></tr>
<tr class="separator:a0a1acd693466b997700242ae00784c20"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aea5732362c8bb3959c6b24f967654d93"><td class="memTemplParams" colspan="2">template&lt;typename T &gt; </td></tr>
<tr class="memitem:aea5732362c8bb3959c6b24f967654d93"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#aea5732362c8bb3959c6b24f967654d93">Query</a> (T *callback, const <a class="el" href="structb2_a_a_b_b.html">b2AABB</a> &amp;aabb) const </td></tr>
<tr class="separator:aea5732362c8bb3959c6b24f967654d93"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aebcb837120ce45bbb82b4b61db533026"><td class="memTemplParams" colspan="2">template&lt;typename T &gt; </td></tr>
<tr class="memitem:aebcb837120ce45bbb82b4b61db533026"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#aebcb837120ce45bbb82b4b61db533026">RayCast</a> (T *callback, const <a class="el" href="structb2_ray_cast_input.html">b2RayCastInput</a> &amp;input) const </td></tr>
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<tr class="memitem:aeb9f94f44840c5bd766031d78f63ca08"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aeb9f94f44840c5bd766031d78f63ca08"></a>
int32&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#aeb9f94f44840c5bd766031d78f63ca08">GetTreeHeight</a> () const </td></tr>
<tr class="memdesc:aeb9f94f44840c5bd766031d78f63ca08"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the height of the embedded tree. <br/></td></tr>
<tr class="separator:aeb9f94f44840c5bd766031d78f63ca08"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1189e783d39bfd69b314284ce52ea3c3"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1189e783d39bfd69b314284ce52ea3c3"></a>
int32&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a1189e783d39bfd69b314284ce52ea3c3">GetTreeBalance</a> () const </td></tr>
<tr class="memdesc:a1189e783d39bfd69b314284ce52ea3c3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the balance of the embedded tree. <br/></td></tr>
<tr class="separator:a1189e783d39bfd69b314284ce52ea3c3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abe02c30ca1b3b9c9b84a571a2f8cef92"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abe02c30ca1b3b9c9b84a571a2f8cef92"></a>
float32&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#abe02c30ca1b3b9c9b84a571a2f8cef92">GetTreeQuality</a> () const </td></tr>
<tr class="memdesc:abe02c30ca1b3b9c9b84a571a2f8cef92"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the quality metric of the embedded tree. <br/></td></tr>
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<tr class="memitem:a410e6115e3d1b4fca61cfbf397767772"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_broad_phase.html#a410e6115e3d1b4fca61cfbf397767772">ShiftOrigin</a> (const <a class="el" href="structb2_vec2.html">b2Vec2</a> &amp;newOrigin)</td></tr>
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Friends</h2></td></tr>
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class&#160;</td><td class="memItemRight" valign="bottom"><b>b2DynamicTree</b></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>The broad-phase is used for computing pairs and performing volume queries and ray casts. This broad-phase does not persist pairs. Instead, this reports potentially new pairs. It is up to the client to consume the new pairs and to track subsequent overlap. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="ae2f7af756bc55ece45221466c5af449c"></a>
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          <td class="memname">int32 b2BroadPhase::CreateProxy </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="structb2_a_a_b_b.html">b2AABB</a> &amp;&#160;</td>
          <td class="paramname"><em>aabb</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>userData</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Create a proxy with an initial AABB. Pairs are not reported until UpdatePairs is called. </p>

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          <td class="memname">void b2BroadPhase::MoveProxy </td>
          <td>(</td>
          <td class="paramtype">int32&#160;</td>
          <td class="paramname"><em>proxyId</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structb2_a_a_b_b.html">b2AABB</a> &amp;&#160;</td>
          <td class="paramname"><em>aabb</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structb2_vec2.html">b2Vec2</a> &amp;&#160;</td>
          <td class="paramname"><em>displacement</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Call MoveProxy as many times as you like, then when you are done call UpdatePairs to finalized the proxy pairs (for your time step). </p>

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template&lt;typename T &gt; </div>
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          <td class="memname">void b2BroadPhase::Query </td>
          <td>(</td>
          <td class="paramtype">T *&#160;</td>
          <td class="paramname"><em>callback</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structb2_a_a_b_b.html">b2AABB</a> &amp;&#160;</td>
          <td class="paramname"><em>aabb</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span>  </td>
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<p>Query an AABB for overlapping proxies. The callback class is called for each proxy that overlaps the supplied AABB. </p>

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template&lt;typename T &gt; </div>
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          <td class="memname">void b2BroadPhase::RayCast </td>
          <td>(</td>
          <td class="paramtype">T *&#160;</td>
          <td class="paramname"><em>callback</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structb2_ray_cast_input.html">b2RayCastInput</a> &amp;&#160;</td>
          <td class="paramname"><em>input</em>&#160;</td>
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        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
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<p>Ray-cast against the proxies in the tree. This relies on the callback to perform a exact ray-cast in the case were the proxy contains a shape. The callback also performs the any collision filtering. This has performance roughly equal to k * log(n), where k is the number of collisions and n is the number of proxies in the tree. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">input</td><td>the ray-cast input data. The ray extends from p1 to p1 + maxFraction * (p2 - p1). </td></tr>
    <tr><td class="paramname">callback</td><td>a callback class that is called for each proxy that is hit by the ray. </td></tr>
  </table>
  </dd>
</dl>

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          <td class="memname">void b2BroadPhase::ShiftOrigin </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="structb2_vec2.html">b2Vec2</a> &amp;&#160;</td>
          <td class="paramname"><em>newOrigin</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span>  </td>
  </tr>
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<p>Shift the world origin. Useful for large worlds. The shift formula is: position -= newOrigin </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">newOrigin</td><td>the new origin with respect to the old origin </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<hr/>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="b2_broad_phase_8h_source.html">b2BroadPhase.h</a></li>
<li>b2BroadPhase.cpp</li>
</ul>
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